Spinach is famously cholesterol-free: a cup of raw leaves contains 0 mg of cholesterol, and even a large cooked portion stays at zero. The number on your plate only climbs when you add ingredients like butter, eggs, cheese, or cream. This Spinach Cholesterol Calculator separates the greens from the additions, so you can see exactly where the cholesterol in a spinach dish comes from.
Enter the amount of spinach you're using and any buttery, creamy, or cheesy additions, along with how many servings the dish makes. The calculator converts your spinach portion to grams, computes cholesterol from each added ingredient, and breaks down the total per serving and per 100 g of the finished dish. It's a practical tool for meal prep, heart-healthy eating, and anyone tracking dietary cholesterol without giving up creamed spinach.
Enter how much spinach you're using. Raw spinach contains 0 mg cholesterol — the total comes from your additions.
Quick add-on buttons fill the first open addition slot.
How to Read the Results
The calculator returns four numbers, and each one answers a slightly different question. Total cholesterol is the sum of all cholesterol from the ingredients you add — spinach itself always contributes 0 mg, so this figure is driven entirely by butter, eggs, cream, and cheese. Per serving divides that total by the number of servings you entered, which is the practical number to track when you portion out the finished dish. Per 100 g normalizes the dish to a standard 100-gram reference portion, making it easy to compare your homemade spinach dish with packaged foods that list cholesterol per 100 g on their labels. The spinach-only row confirms the baseline: no matter how much raw or cooked spinach you start with, the greens contribute zero cholesterol.
If the per-100 g number looks high, that is usually a sign that a calorie-dense, cholesterol-rich ingredient such as butter or whole eggs is dominating. Because spinach is roughly 90% water, a creamed spinach recipe with several tablespoons of butter can easily land in the 40–80 mg per 100 g range, while plain steamed spinach sits at 0 mg.
Step-by-Step Guide
- Enter the amount of spinach you plan to use and pick the matching unit. A standard raw handful is estimated at about 10 g, and 1 cup of raw leaves is about 30 g.
- Choose an added ingredient from the first addition dropdown. If the dish uses two cholesterol sources — for example, butter and cheese — fill the second addition row as well.
- Set the number of servings the recipe makes. This determines how the total cholesterol splits across portions.
- Click Calculate cholesterol to see the total, the value per serving, the value per 100 g, and a step-by-step breakdown of where every milligram came from.
- Use the quick-fill preset buttons to load common scenarios such as 1 cup of raw spinach or 1 large egg in one click.
The Math Behind It
Every ingredient in the calculator has a cholesterol value per standard unit based on USDA FoodData Central values. The calculation is a weighted sum:
Per serving = total cholesterol ÷ servings
Per 100 g = total cholesterol × 100 ÷ total dish weight
Total dish weight combines the converted spinach weight with estimated weights of the added ingredients. Spinach conversions use approximate densities: 1 cup raw ≈ 30 g, 1 cup cooked ≈ 180 g, 1 handful ≈ 10 g, and 1 oz ≈ 28.35 g. Ingredient weights are estimated at 14 g per tbsp of butter, 15 g per tbsp of heavy cream, 50 g per large egg, 28 g per oz of cheddar, and 14 g per tbsp of olive oil. Full nutrient data is published by the USDA in FoodData Central: USDA FoodData Central.
Worked Examples
Reference Data
Cholesterol values used by the calculator, rounded from USDA FoodData Central standard reference data:
| Ingredient | Unit | Cholesterol (mg) |
|---|---|---|
| Raw spinach | any amount | 0 |
| Butter (salted) | 1 tbsp | 31 |
| Heavy cream | 1 tbsp | 20 |
| Whole egg (large) | 1 egg | 186 |
| Cheddar cheese | 1 oz | 28 |
| Olive oil | 1 tbsp | 0 |
Tips & Best Practices
- Dietary cholesterol is only part of the picture — saturated fat does more to raise blood cholesterol in most people. Butter and cheese are high in both, so a single tablespoon of butter adds 31 mg of cholesterol and about 7 g of saturated fat.
- Use olive oil instead of butter for sautéed or creamed spinach. It contributes 0 mg of cholesterol and swaps saturated fat for monounsaturated fat.
- If a recipe serves four but you eat half the pan, divide the per-serving number again — the calculator reports what one declared serving contains.
- Weighing spinach once and using volume units later is fine here, because the spinach mass never changes the cholesterol math: 0 mg is 0 mg.